Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1977-02-16
1979-02-13
Larkins, William D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
357 24, 333 70T, G11C 1928, H01L 2978, H03H 728
Patent
active
041397835
ABSTRACT:
In a charge transfer transversal filter a substrate of one conductivity type semiconductor material is provided. A first plurality of electrodes insulatingly overlie the substrate, each split into a first and a second part with a small gap therebetween. A second plurality of electrodes insulatingly overlie the substrate, each spaced between the adjacent electrodes of the first plurality. A first clock line is connected to the first parts of the first plurality of electrodes and a second clock line is connected to the second parts of the first plurality of electrodes. A fixed d-c voltage is applied to the first and second clock lines. A voltage pulsating above and below the fixed d-c voltage is applied to the second plurality of electrodes. Means are provided for introducing packets of charge representing sequential samples of an analog signal into the filter. Means are provided for deriving from the first and second lines an output which is representative of the difference in charge underlying the first and second parts of the first plurality of electrodes.
REFERENCES:
patent: 3801883 (1974-04-01), Tiemann
patent: 3819958 (1974-06-01), Gosney
patent: 3877056 (1975-04-01), Bailey
patent: 3902186 (1975-08-01), Engeler et al.
Ibrahim et al., "CCD's for Transversal Filter Applications," Int. Electron Devices Meeting Tech. Digest, (12/74) pp. 240-243.
Melen et al., "One-Phase CCD: A New Approach to Charge-Coupled Device Clocking," IEEE J. Solid-State Circuits, vol. SC-7 (2/72), pp. 92-93.
Sangster "The `Bucket-Brigade Delay Line` A Shift Register for Analogue Signals," Philips Tech. Review, vol. 31 (1970), pp. 92-110.
Buss et al., "Transversal Filtering Using Charge-Transfer Devices," IEEE J. Solid-State Circuits, vol. SC-8 (4/73), pp. 138-146.
Cohen Joseph T.
General Electric Company
Larkins William D.
Munson Gene M.
Snyder Marvin
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